package com.atguigu.gulimall.cart.vo;

import lombok.Getter;

import java.math.BigDecimal;
import java.util.List;

public class Cart {
    public void setItems(List<CartItem> items) {
        this.items = items;
    }

    private List<CartItem> items;
    private Integer countNum;//商品数量

    private Integer countType;
    private BigDecimal totalAmount;//商品总价
    private BigDecimal reduce=new BigDecimal("0");//减免价格

    public List<CartItem> getItems() {
        return items;
    }
    public Integer getCountType(){
        int count=0;
        if(items!=null&&items.size()>0){
            for (CartItem item : items) {
                count+=1;
            }
        }
        return count;
    }

    public Integer getCountNum() {
        int count=0;
        if(items!=null&&items.size()>0){
            for (CartItem item : items) {
                count+=item.getCount();
            }
        }
        return count;
    }

    public BigDecimal getTotalAmount() {
        BigDecimal count=new BigDecimal("0");
        //计算出所有购物项的总价
        if(items!=null&&items.size()>0){
            for (CartItem item : items) {
                if(item.getCheck()){
                    BigDecimal totalPrice = item.getTotalPrice();
                    count.add(totalPrice);
                }
            }
        }
        //减去优惠的金额
        BigDecimal subtract = count.subtract(getReduce());
        return subtract;
    }

    public BigDecimal getReduce() {
        return reduce;
    }
}
